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G. H. CLARKE.

PAPER GUTTER.-

NO. 387,621. Patented Aug. 14, 1888..

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UNITED STATES PATENT OFFICE.

GEORGE H. CLARKE, OF COLUMBUS, OHIO, ASSIGNOR TO JAMES S. BATTER- SON AND MARTIN HENSEL, OF SAME PLAGE.

PAPER-#CUTTER SPECIFICATION forming part of Letters Patent No. 387,621, dated August 14, 18.88.

.Application filed February 2, 1887. Serial No. 226,220.

To all whom, it may concern:

Be it known that I, GEORGE H. CLARKE, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Paper-Gutters, of which the following is a specification.

My invention relates to the improvement of devices for cutting paper, and especially relates to devices for trimming wall-paper; and the objects of my invention are, first, to provide a simple and effective cutting device of this class, so constructed as to ad mit ofits being readily adjusted for use with straight-edges of various thicknesses and widths, and, second, to so pivot the cuttingdisk to the frame of the device as to cause the paper to be cut close to the straightedge and to provide means for thelateral adjustment of said cuttingdisk. Ihese objects I accomplish in the manner illustrated in the accompanying drawings, in which- Figure l is a frontelevation of my devicein position for use. Fig. 2 is a sectional view taken on line was of Fig. 3, and Fig. 3 is a plan View.

Siniilarletters refer to similar parts throughout the several views.

B represents a flat metallic plate the front side of which is provided at cach end -with a downwardly-projecting lug, a, and a central upwardly-projecting portion, A, preferably halfcircular in form, said projecting portions being cast with the plate and forming a part thereof. A half-circular depression, a', is formed in the front surface of the portion A,of a depth sufficient to bring its depressed surface on a line with thein ner surfaces of thelu gs a. From the central portion of the top edge of the portion A is made to extend, slightly outwardly and thence downwardly, a fixed bearing-arnnb. Looselyjournaled in this arm b and the depressed portion a of the portion A by means of a short bolt, 7c, the screwthreaded inner and smaller e'nd of which is made to enter a screw-hole, k', in the plate, is a sharpened disk,O,the tlat inner side of which is seated loosely within the depression c. When in this position, the outer surface of the disk is about iush with the outersurface ofthe front side of the plate.

(No modell Made to fit within a screw-hole, f, formed in the upper portion of the arm b, is a short screw, f', the inner end of which is adapted to bear lightly against or within close proximity to the surface of the disk. By turning this screw it will be seen that a lateral adj ustment' of the disk may be had.

The upper surface of the plate Bis provided with an oblong rearwardly-extending depression, a, within which is adapted to be made to slide an extension-arm, g, having its rear end bent downwardly to form a rear clamping-arm, g. The horizontal portion of this arm is provided with a central elongated slot, 7L, in rear of which,at a point near the down` Ward bend, is formed a vertical scrcwhole, through which is made to pass an adjustingscrew, i, having a small projecting bearingroller pivoted within aslot formed in its lower end.

Z represents a set-screw, made to pass vertically downward through the Aslot of the arm y and to enterascrew-holein the plate B, said set-screw having a daring head adapted to be made to bear against the upper surface of the arm g.

Formed in the plate B, at points slightly in rear of the front lugs, a, are vertical screwholes, through which are made to pass adjusting-screws p p, the lower ends of which are connected to the ends of a transverse metallic pressing strip, m, which, being preferably curved at its central portion, is made to extend beneath the front portion of the plate B.

In order to adj ust the device for use,it is tlrst necessary that the arm g be drawn outward or inward until the distance between the inner sides of the clamping-arm g and the lugs a is but slightly greater than the width of the straight-edge to be used, admitting of the latter being loosely fitted therein.

To provide for the use of straight-edges of various thicknesses, the adj usting-screwsp and t' may be turned until the under side of the strip m and the lower end of the screw t' are at the proper height to admit of the upper side of the straight-edge d bearing against the said screw and strip, while its under side is but slightly above the lower edge of the disk C, as shown in Fig. 2 of the drawings.

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ted loosely over the strnight-edge,on which it is made to slide, causing the dow nwardly-prd jecting edge ofthe disk C to sever the projecting edge o of the paper first placed beneath close to the front line of the straight-edge.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In n paper-cutter, the combination of the plate B, having lugs a, depressed projecting portion A, and bearing-arm b,with the cutting disk C, journaled in said arm I) and portion A, dislcndjusting screw f, slotted extension-arm g and its clamp g and set-serew Z, substnn tial] y its :ind for the purposes specified.

2. The combi nation of the plate 13,1iaving lugs a, depressed projecting portion A, and bearing-arm b, with the cutting-disk C, journnled in said :trui und portion A,disk-adjusting serewf, slotted extension-army and its clamp g and set-screw Z, and adjnstingsercws z' and p p, thelatterbeing connected to the pressingstrip fm, substantially as mid for the purpose specified.

GEORGE H. CLARKE.

Witnesses:

ALEX. II. JOHNSON, XV. S. SHEPHERD. 

